The names are yet to be confirmed but cast slash writer Mindy Kaling made jokes about the casting in her tweets. "Yep, our James Spader arc includes a 'Secretary'-like story line between him and @arnettwill," she wrote, adding "Also, Ray Romano, who I love a great deal and am dying to meet."

However, chances are slim for Romano and Arnett to be a series regular. The former is fronting "Men of a Certain Age" while the latter has just signed up for a Lorne Michaels pilot. Spader meanwhile, has not committed himself to any series since "Boston Legal". Tate appeared in numerous episodes of "Doctor Who" and may be looking for a regular job.

"The Office" seventh season finale airs May 19. Steve Carell's last episode would air April 28.